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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 4639-2000 |
Cinematography--monophonic 35mm negative photographic sound record on 35 mm motion-picture film--Position and maximum width dimensions 35mm单声道电影光学声底片上声迹的位置和最大宽度尺寸 |
China National Standards monophonic |
 English PDF |
| GB/T 5438-1985 |
Characteristics and measuring methods for monophonic and stereophonic transmissions 单声和立体声节目传输特性和测量方法 |
China National Standards monophonic |
English PDF |
| GB/T 4312.1-1984 |
Technical parameters and measuring methods for FM broadcasting transmitters--monophonic and stereophonic 调频广播发射机技术参数和测量方法 单声和立体声 |
China National Standards monophonic |
English PDF |
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